Miniature and integrable balun for light-weight and flexible MRI RF coils

用于轻型、灵活 MRI 射频线圈的微型、可集成巴伦

• 批准号: 10640644
• 负责人: Xinqiang Yan
• 金额: $ 8.75万
• 依托单位: VANDERBILT UNIVERSITY MEDICAL CENTER
• 依托单位国家: 美国
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-06-01 至 2025-05-31
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10640644
• 关键词: Affect; Amplifiers; Anatomy; Cervical spinal cord structure; Clinical; Communities; Electromagnetics; Elements; Exhibits; Frequencies; Goals; Hand; Human; Image; Impairment; Knowledge; Magnetic Resonance Imaging; Measures; Methods; Noise; Nuclear; Outcome; Patients; Pelvis; Performance; Phase; Polychlorinated Biphenyls; Printing; Series; Shapes; Signal Transduction; Structure; Temperature; Testing; Time; Weight; design; electric impedance; experimental study; flexibility; foot; improved; interest; light weight; manufacture; microwave electromagnetic radiation; models and simulation; novel; radio frequency; simulation; transmission process

Project Summary/Abstract This proposal is to develop a miniature balun to meet the emerging meet in flexible RF coils in MRI. Flexible coils improve patient comfort and can be formed into desired shapes to match the human anatomy of interest. Therefore, compared to conventional rigid coils, they exhibit improved filling factor and signal-to-noise ratio, especially when imaging curved anatomies such as cervical spinal cord, pelvis, and hands. Although the challenges in building flexible coils have been solved with the numerous methods mentioned above, in practice, it is still an open question to make fully flexible coils since the balun or cable trap circuits associated with coils are still rigid and bulky. The first goal of this project is to theoretically analyze, build and test a miniature LC balun with a novel topology, namely LCCC balun. The second goal of this project is to integrate the LCCC balun with flexible receive-only coils and transmit/receive coils at 3T and 7T. The theoretical analysis, script for component value calculation, circuit simulation models, and PCB designs, will be distributed for open access. This miniature LCCC balun can be easily transferred to other RF coil designs, with benefits for the entire community.

项目摘要/摘要 该建议是开发一个微型的Balun，以在MRI中的灵活RF线圈中与新兴的会议见面。柔性线圈 提高患者舒适性，可以形成所需的形状，以匹配人类感兴趣的解剖结构。 因此，与常规的刚性线圈相比，它们表现出改善的填充因子和信噪比的比率， 特别是当成像弯曲解剖学时，例如宫颈脊髓​​，骨盆和手。虽然 在上面提到的众多方法中，在构建灵活线圈方面的挑战已解决 由于Balun或电缆陷阱电路与线圈相关 仍然是僵硬而笨重的。该项目的第一个目标是理论上分析，构建和测试微型LC Balun 具有新颖的拓扑结构，即LCCC Balun。该项目的第二个目标是将LCCC Balun与 柔性仅接收线圈，并在3T和7T处发射/接收线圈。理论分析，组件的脚本 价值计算，电路仿真模型和PCB设计将分发以进行开放访问。这个微型 LCCC Balun可以轻松地转移到其他RF线圈设计上，并为整个社区带来好处。